334 THE CANADIAN ENTOMOLOGIST, 



SOME NEBRASKA BEES. 



BY J. C. CRAWFORD, JR., WEST POINT, NEBR. 



Melissodes brevicorjiis, Cress.— Lincoln, Aug. 12-27, on Teucrhim 

 Canademc. The $ differs from the $ only in having the face-parts 

 black, pubescence on face lighter, segments 2 to 4 only banded ; the 

 scopa is yellowish. The $ ^ taken all had the tibiae and tarsi entirely 

 fulvous. 



Noinada grindelUe, Ckll. — V • Head and thorax black, shiny, very 

 sparsely punctured ; abdomen red, very sparsely and finely punctured ; 

 face covered with decumbent, silvery-white pubescence ; mandibles and 

 labrum apically ferruginous ; antennie ferruginous beneath ; mesothorax 

 almost impunctate medially ; scutellum sub-bilobate ; pleura of mesothorax 

 swollen, whole thorax with white pubescence, especially pleura and 

 metathorax ; form more robust than in $ . Length 7 mm. 



^ . — The posterior femora have a small tooth beneath, toward base. 



Common at Lincoln in August ; taken on Soil dago Missouriensis. 

 Gj'indelia squarrosa ; Euphorbia and Lactuca. 



Mr. Pierce informs me that it is probably a parasite of Halictus 

 Hgatus, Say. 



Steiis lateralis. Cress — West Point, June 10, '01. Taken at the 

 holes of Alcidamea simplex in rose bushes. 



Ncopasitcs IHinoieiisis^ Robt. — Lincoln and West Point, Sept. 4 to 

 I r, on Sol id ago rigida and Grindelia squarrosa. 



N. heliopsis, Robt. — West Point and Lincoln, Aug. 30 to Sept. 11, 

 on Aster, S. rigida ar.d G. squarrosa. 



Ilalictoides marginatus, Cress. — Common at Lincoln and West 

 Point in August and September ; found on Grindelia, Ilelianthus, 

 Sol/dago, Teucriuin, Bideus. 



H. maurus, Cress. — Sioux Co., June, on Campanula. Mr. Viereck, to 

 whom this was sent for comparison with Mr. Cresson's types, informs me 

 that the types are all males, and not females, as stated in the original 

 description. 



Perdita iiiaura, Ckll. — Many specimens from both Lincoln and 

 West Point, but all on Physalis. Dr. Graenicher writes that he has 

 found it burrowing in loamy soil at Milwaukee, Wis., and regards it as an 

 oligotropic visitor of Physalis. Prof Cockerell writes that it may 

 possibly be found on Aster growing in the vicinity of Physalis, and no 

 doubt this was the case in the type material. 



